Eduardo Lazcano

Man, I am such a genius sometimes. So it seems that whenever you upload a world from your local to the realms service, there is a glitch that occurs that flips every cheat rule that is set by default to the world (when the "Activate Cheats" setting is off) such as daylight cycle, mob spawning, etc. When you upload a world, even if the world is completely survival for achievements, it will still allow you to unlock them, but the game will have its default 'cheat' settings flipped (from true to false or false to true), I know this because the game was on peaceful and keep inventory was on, even though my cheats were off, but I could still earn trophies, and the only way to go back to normal is to active the cheats to flip the settings back to normal, but removes the achievements from the world. So once this glitch occured, my simple fix was to download the world back on my phone, and simply reupload that same world (with the flipped settings glitch) onto the second world space in the realms to REFLIP the default 'cheat' settings back to normal, and it worked. You will know it worked because everything under the "Activate Cheats" toggle except 'keep inventory' and 'command blocks enabled' should be toggled on. This is a fix for those that don't want to screw their world by turning on cheats and keep them eligible for achievements, but the glitch happens in the upload and possibly in the download process as well (although i've only seen it happen in the upload process) where it flips the default cheat settings for no reason. Note: when you are going to try to reflip the settings back to normal, make sure you have reset the world on the realm slot, because those default settings will transfer to your uploaded world (at least thats what it seems like).

Update: ive done some testing, and it might do the settings flip glitch when its a world being uploaded to a slot in the the realm that DOESNT have a world on it (not even a new world; on the first time upload). The same fix will work if the glitch happened to your world as long as you download the world, then reset the world in the realm before the reupload.

I have some light to shine on my recent problems with this. So we havent had an update on this issue and I was beginning to get desperate, so I tried to spend some time to figure out what the issue actually was on my end. My world, of approx. ~165mb, was my main world I was trying to upload. Good internet (400mbs⬇️10mbs⬆️) and the world is on android. At first, the world would show the progress bar, but once it reaches the end, "an error occured" and no world was uploaded, even after multiple attempts. Now I went and connected my phone to my home PC to check the file system on android as you can only access the 'internalstorage/android/data' folder on pc. I then looked for the com.mojang folder for minecraft. Once I was in, I checked the world files, and realized that there were some resource packs attached to the world, even though in game it revealed that there were 0. I deleted all resource packs in the resource pack folder, and made sure there were no behavior packs as well, and also renamed the main world folder (it was a bunch of random letters at first). Then I disconnected my phone and logged back into MC. Once I was in, I re-attempted to upload the world. Again, the progress bar showed successfully, but once it got to the end, "an error occured", BUT I checked the world to see if it truly failed, but it UPLOADED. So it seems if packs were applied to a world at some point, they will remain there even though in-game, there is nothing applied. For those still struggling to upload big worlds on Android or PC, I suggest: checking the world files (NOT IN-GAME) to make sure there are no beh/res packs in them, and rename the world folder (just try it), then attempt to upload it. If it gives "an error occured", wait a few seconds then check the world to see if it uploaded. If not, retry again (if you get stuck in the "Can't find a place to upload world" screen/loop, use a vpn and try again, as it seems as if your network gets "banned" to reupload or something. I managed to successfully upload the world on the first try after doing that on my main home network. For those on iOS or Console: i dont have a clear solution on how to check the file system for iOS, but if you know how, check the world folder, same on Playstation.

Good luck!

So we are now on 1.19.41.01, and still not working. I repurchased realms, attempted to upload my world of 167mb~ and a few things happened. First try, the world would begin uploading, reach the end, and the infamous "an error occured" message appears. After trying a second time, I would get put in a loop where the world no longer wants to upload, and begin recieving the "failed to find a place to upload the world" message consistently. The world is completly vanilla, nothing special. How long will this take? Its getting ridiculous. I just wanna make my world open to my friends without me having to host.

Ok, this update gave me so much hope only to be disappointed yet again on this bug. Tried uploading the same world (Vanilla world, no rs/bh packs, 170mb in size, survival) to the realm. A few things happened. For the first time EVER I finally see a progress bar which sparked so much excitement and hope. I used my home internet (roughly 30mb download, 5-10mb upload) had the closest success. The progress bar would reach 100% then, not suprisingly, hit with "an error has occured". Tried switching to my own internet signal, same thing, reaches 100%, still nothing. I have tried making copies and uploading those too, no luck. I tested uploading my world on a faster internet speed later (100mbs upload/download) and wouldnt even reach 25% in the progress bar and already, "an error occured". After trying again, it would put me in a loop of "Failed to find a place to upload the world. Maybe check internet connection?". Smaller worlds upload fine, but my main world doesn't budge. Seriously, all this waiting, and still no working fix. 

Device: Samsung Note 20

Still not working. Trying to upload a world on my android  Samsung Note 20, with a world thats 169mb roughly, and no addons, purely vanilla world. Multiple attempts still nothing but "error has occured"s even on the new network stack 'if it is supposedly enabled'. Internet isnt the issue as my upload speeds reach almost 100mbps.

If you want i can post a video of what i mean on YouTube and reply back the link to make it easier to understand. Sorry for the confusion.

The thing is, I would like for it to function the first time for a parkour map, like when a player steps on the pressure plate.

Yeah, you can try putting the command without the /

Ok thanks for the help! Now I understand.

Yeah sure